Process of preserving the yolk of eggs.



FREDERIC BE'LHOMMET OF BRUSSELS, BELGIUM.

PROCESS OF PRESERVING lHE YOLK .OF EGGS.

No Drawing.

Specification of Letters Patent.

Patented Apr. 23, 1912.

Application filed March 16, 1910. Serial No. 549,674.

To all 1.071.011). it m (13 concern:

Be it known that I. Fmmimo BnLnoMMn'r,

a subject of the King of Belgium, and residentat Brussels Belgium, have invented certain new and useful Improvements in Processes for Preserving the Yolk of Eggs. One employs generally for preserving the yolk of eggs which are very rapidly spoiled asmall quantity of .boric acid or a large quantity of chlorid of sodium. These products have the great drawback of changing the taste of the. yolk of'the eggs and to reduce its value by rendering it. unsuitable for certain uses; furthermore the yolk thus prepared always contains a certain proportion of white which cannot'be removed by mechanical means.

The process which forms the subject matter of this invention preserves the primitive qualities of the yolk while freeing it from the traces of white which it contains. It allows to furnish it to the consumers quite free of any addition. This process consists in adding to the fresh yolk of eggs a small amount of a volatile product which does not attack the yolk but coagulates the white such as for instance chloroform, and in removing this product at the moment of the consumption by a distillation carried out in the vacuum at a low temperature. It will be good to cause the yolk to pass before the distillation through a piece of nmslin in order to remove the white and the coagulated germs.

Example: ()nc intimately mixes loo kg. of fresh yolk of eggs with L to -t kilograms of chloroform and one tills this mixture in ordnary cans which are afterward hermetically closed. The yolk of eggs thus prepared keeps a very long time. In order to render it proper for the consumption, all that is necessary is to filter it as above described and to heat it in a vacuum to about 50 centigrade until the chloroform be entirelv expelled therefrom. One replaces the water which has been evaporated at the same time or one adds it before the operation.

The chloroform may be replaced by similar products having a low point of ebullition such as the dichlorethylene and the like;

I claim:

1. A process for, preserving the yolk of eggs consisting in adding thereto chloroform to coagulate the white and thenbringing said yolk back to its primitive fresh state A process for preserving the yolk of eggs consisting in adding theretov chloroform to coagulate the white and then bringing said yolk back to its primitive fresh state by removing said chloroform by distillation carried out in a vacuum at a low temperature.

3. A process for preserving the yolk of eggs consisting in adding thereto chloro-.

form to coagulate the white and then'bri'nging said yolk back to its primitive fresh state by passing it through a fabric aml expelling the chloroform by distillation.

In testimony whereof I have. hereunto set my hand in presence of two witnesses.

l ltl lDl lltltt lilllilIUMMll'l. \Vit nesses:

S. ('itDLl-Z'i, (lmaoouv lunLAN.

5 by expelling said chloroform by means of 

